Ten mortar shells were allegedly fired from Afghanistan in South Waziristan on Thursday, injuring a woman and two children.
The mortar shells were fired near the Angoor Adda area.
A senior Pakistani diplomat had met with the Afghan government on May 6 this year to discuss the escalation of cross-border firing.
Kabul accuses Islamabad of playing a double game in supporting Taliban insurgent attacks on the US and Afghan troops.
Pakistan denies the allegations and is locked in its own battle against the Pakistani Taliban.
